Squid
Squid is a fully-featured HTTP/1.0 proxy which is almost (but not quite - were getting there) a fully-featured HTTP/1.1 proxy. Squid offers a rich access control authorization and logging environment to develop web proxy and content serving applications. Squid offers a rich set of traffic optimization options most of which are enabled by default for simpler installation and high performance.
Official Site:
http://www.squid-cache.org/Severity Summary:
Reference
Title
Severity
Squid Inconsistent Interpretation of HTTP Requests (HTTP Request Smuggling) Vulnerability
Squid Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability
Squid Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability
Squid Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection) Vulnerability
Squid Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vulnerability